Which HDD is Best??????

for all current models, SATA can be faster in a few years time if the disk's spinig speed is improved in a few years time. What really hold back of HDD's performance is the spinning speed, not communication speed (SATA: 150mb/s, ATA 133mb/s).

reliability, not really much different between different maker because all of them are very reliable, but HDD do fail from time to time